Whether stuck in traffic, or just passing by, chances are if you live in Jacksonville you've seen a man doing karate moves at the intersection of Western Boulevard and Highway 17. He's known as the Jacksonville Ninja or Radio. In actuality he is 46-year-old Robert Mattocks. He spends eight hours a day on the corner doing karate moves. He says it’s merely exercise, but it’s exercise that puts a smile on the faces of many. And it has made him somewhat famous. His antics are on the website You Tube. You can watch the video by clicking on the link below.